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| author | Joel Stanley <joel@jms.id.au> | 2019-12-12 01:32:01 +0300 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2019-12-12 01:32:06 +0300 |
| commit | fdc60468f3e452364d432f1a7c3f83d58bba1b84 (patch) | |
| tree | de7197f150958ae72cb87b6cf4885610f3edd704 /drivers/cpufreq | |
| parent | 20572eecd7248b66d855a8e4812debd9f828ccba (diff) | |
| parent | 8539dfa4fcbcf58c3c2f92ac57b964add884d12b (diff) | |
| download | linux-dev-5.3.tar.xz | |
Merge tag 'v5.3.15' into dev-5.3dev-5.3
This is the 5.3.15 stable release
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/cpufreq.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index f970f87ce86e..9b6a674f83de 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -933,6 +933,9 @@ static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf) struct freq_attr *fattr = to_attr(attr); ssize_t ret; + if (!fattr->show) + return -EIO; + down_read(&policy->rwsem); ret = fattr->show(policy, buf); up_read(&policy->rwsem); @@ -947,6 +950,9 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr, struct freq_attr *fattr = to_attr(attr); ssize_t ret = -EINVAL; + if (!fattr->store) + return -EIO; + /* * cpus_read_trylock() is used here to work around a circular lock * dependency problem with respect to the cpufreq_register_driver(). |